Vermin-exterminator.



No. 736,282.` Y 1' PATE-NTED AUG. 11. 1903'. s.,W. s. S.'R. MACY. l

VERMIN EXTERMINATOR.

Y PPLIUATION FILED AUG. A11i, 1902. no non'n'n.

Tu: noms crans co.. mmm-mo., wAsmNsraN, n. c,

i ratented August 1'1, 190s.

FFICE..

SETH W. MACY, OF COLFAX, AND SHERMAN R. MACY, OF DES MOINES, IOWA.

VERIVllN-EXTERNIINATOR.

SPECIFICATION forming part of Letters Patent N o. 736,282, dated August 11, 1903. Application tiled August 15, 1902. Serial No. 119,819. (No modelJ nator in which -ametal tank is used which is designed to receive the poisonous substance used to exterminate the vermin and which can be readily inflated with air, so that the air and the poisonous substance can be mixed thoroughly'.

A further object is to provide a devicefor heating the substances on the interior of the tank and preventing them fromA becoming too cold for practical use.

A further ,object is to provide a tube whichv can be readily inserted in the hole made by the vermin which it is desired to kill.

A further object is to provide shut oft' valves, so that the air and other substances contained inthe tank can be retained or let out at the pleasure of the operator.

A further object is to provide an opening .at the top of the tank for pouring in the poisonous substance and to provide a double bottom, which will better regulate the applying of the heat to the tank, and, further, to provide a pipe through `which the air is forced into the tank which will reach sub.

stantially to thebottom of the tank and on accountof its peculiar arrangement will Aso cause the air 4to be thoroughly mixed with lthe poisonous substances. v

the operator is using the air-pump to fill the tank. y

Our invention consists in certain details in the construction, arrangement, and combi- ,nation of the Various parts of the device whereby the objects contemplated are attained, as hereinafter more fully set forth,

pointed out in our claims, and illustrated in the accompanying drawings, in which* Figure 1 is a cross-sectional view of the complete device except the valved pipe out through which the poisonous substance is forced. Fig. 2 is a front elevation of the tank and shows in cross-section the box for containing the lamp beneath the tank. Fig.

-3 is a detailed sectional view of the front of the box, showing the door to the box and the opening above the door for allowing the hot air from the lamp to escape when it is drawn outwardly underneath the deflector. It also shows the vertical slot beneath the door for holding the means for moving the lamp into position.

Referring to the accompanying drawings, we have used the reference-numeral 10 to in dicate the tank having the conical top portion l1, said conical portion being deflected upwardly from the tank and having an opening 12 extending through its upper portion. Said opening has a screw-.threaded interior through part of its length. We have provided a thumbfscrew 13, designed to fit in the Vopening 12 in such a way that the substances on'the interior of the tank will be retained therein when the thumb-screwisin the opening 12. This thu mb-screw can be removed at the pleasure of the operator, so that he can pour the foreign substance into'the tank. At the bottom of the tank, which is hollow and has thin metal sides, we have provided a conical bottom 14,' and on the interior of said bottom 14: we have provided an inner bottom 15, this bottom 15 being designed to receive on its upper surface the poisonous substance which is poured into the tank and to prevent the adhering ofthe poisonous substance to the main bottom of the tank, and thus prevent any corroding of the main bottom when the heat is applied.

To the side of the tank we have xedthe air-pump A16, having the one-way valve 17at its lower portion, so that when the air is forced downwardly by the piston of the pump the one-Way valve 17 will be forced downwardly. Attached to the bottom of this airpump 16 and outside of the one-way valve 17 is the valve-chamber 18, said chamber having the metal sides 19, said sides being attached to the sides of the tank 10 and to the bottom of the air-pump. Extending into the valve-chamber 18 and through the side of the tank 10 is the metal tube 20, said tube extending to the central portion of the tank and at right angles to the sides of the tank. On the inner end of this tube 20 and extending at right angles to it is an extension of the tube 21, the lower end of said extension being a slight distance above the inner bottom of the tank. Between the outer portion of the sides 19, which are around the air-chamber 18, we have mounted the stop 22, the interior end of said stop being designed to engage the end of the tube 20 which is in the valve-chamber 18, and when the interior end of this stop 22 is in engagement with the said end of the tube 20 the air will be prevented from escaping out of the tank. This stop has a screw-thread on it aud a wheel at its outer end, so that it can be readily screwed into engagement with the tube 20 or drawn out of engagement with said tube by unscrewing it. This stop 22 is designed to be used only when the one-way valve 17 does not retain all of the air which has been forced into the interior of the tank. By having this stop 22 an absolutely air-tight covering is added, prey venting any air from escaping from the opening in the tube.

To the upper portion of the tank and opening into the opening 12 through the sides which form said opening we have provided a metal pipe 23, havingthe stop-cook 24 therein, said stop-cock being designed to control the'fiow of the air from the tank. To the outer end of the metal pipe 23 we have attached a hose-pipe 25, said hose-pipe being considerably longer than the height of the tank and the box beneath the tank, so that the operator can have plenty of hose to reach any reasonable distance from the top of the tank. To the end of the hose-pipe 25 which is away from the met-al pipe 23, we have pro- .vided a nozzle 26, which is hollow on its interiorandsubstautiallycircularinshape. Said nozzle has a metal protector 27 at its outer end, said protector being designed to prevent the dirt from entering the hole in the end of the nozzle, and thus allow the air and poisonous substances to be forced readily through the opening into the hole in which the nozzle has been placed.

Attached to the bottom of the tank and extending some distance below it we have provided a box 28, having the circular openings 29 through its bottom portion 30. At one side of the box we have provided the opening 3l and the door 32. The slot 31 is immediately above it. Extending substantially parallel with one side of the conical bottom is the heatdetlector 33, which is so arranged that when the lamp 34 is pulled outwardly from beneath the bottom of the tank 10 the flame coming from the lamp will come against this detlector and the heat will be drawn outwardly through the opening 31 on account of the drafts ereated by the openings in the bottom of the box and the opening 31. Beneath the door and through the front portion of the box we have cut a slot 35, said slot being designed to receive the wire handle 36, said handle being attached to the lamp 34 and extending through the slot 36, so that by pulling the handle outwardly when the lamp is beneath the. bottom of the tank the lamp will be drawn beneath 'the deflector 33, so that the iiame will be beneath said deiiector and the heat will be drawn outwardly by it, or by pushing the rod 36 inwardly when the lamp is beneath the detector the flame coming from said lamp will be directly beneath the bottom of thetank and a direct heat will be applied to the bottom of the tank. The delector 33 in this instance causes the entire flame to be thrown against the bottom of the tank owing to the distance between said detlector and the bottom of the tank. To the outside of the box 28 we have firmly attached the prongs 37, said prongs extending downwardly from the lower edge of the box and beingdesigned to enter the ground and hold the mechanism firmly in position when the operator is forcing air into the tank with the air-pump.

In practical use and assuming that the op` erator is desirous of using the exterminator for killing gophers, rats, or other vermin he takes out the thumb-screw 13 from the top of the tank and pours carbon disultld or other Apoisonous substance into the tank through the opening 12. When he has putin a sufficient amount of the poisonous substance, he replaces the thumb-screw 13 in position at the top of the tank and adjusts the stop-cock 24, so that no air can escape through the opening in the pipe 23. He then lights the lamp 34: and-places it beneath the bottom of the tank, as shown in Fig. 2. He turns the stop-cock 22 away from engagement with the metal tube 20, as shown in Fig. 1, and by using the airpump 16 forces the air in the tank 10 through the valve-chamber 18 and the tubes 2O and 21. The one-way valve 17 will be forced downwardly when the piston of the pump is forced downwardly and the air will enter the chamber 18. The one-way valve 17 will then` be drawn upwardly by the suction which is created by drawing the piston upwardly and will be forced against the bottom of the pump 16 by the pressure of the air which is in the tank 10. When the tank 10 has been filled with sufficient air to create the air-pressure desired, the stop-cock 22 is screwed into engagement with the tube 20, thus preventing any escape of the air from the tank throughl the opening in that tube. The operator then locates the burrow of the gopher by means of IOO IIO

viding an opening for the nozzle 26.

a prodding-iron, which he also uses for pro- After this opening has been provided the nozzle 26, which is on the end of the hose 25,1is inserted into the said opening, and the dirt is prevented from getting into the opening in the nozzle 26 by means of Ithe protector 27. He

then allows the airV to escape from the tank through the hose and the nozzle 26 by unscrewing the'stop-cock 24. It will be seen that on account of the way the stop-cock 24 c is arranged the flow of the air through the hose can be easily controlled. If the supply of air is not sufficient to exterminate the vermin into whose burrow the nozzle has been thrust, more gas can be generated by pumpingmore air into the tank and allowing the y tor.

lighted lampto remain beneath the genera- If at any time the heat becomes too intense andthe operator does not desire to put out the lamp, he can draw this lamp outwardly by means of the handle 36, which is attached to it, until it is beneath the dedector 33, which causes the heat to be diverted from the bottomof the tank through the opening 3l in the side of the box 28.

Having thus described our invention, what we claim as new, and desire to secure by Lety bottom insaid tank having a small air-space between them, a metal tube extending into said tank substantially at right angles to the bottom at its lower portionand substantially parallel with the bottom at its upper portion,

an air-pump attachedoutside of said tube for f forcing the air into the tank immediately l above the bottom to thoroughly mix the substances in the tank, a-lamp mounted beneath, said bottoms, a deiiector for turning the a me il, of the lamp from the lamp outwardly when said Vlamp is beneath the deiiector, for the purposes stated.

2. In a device of the 'class described, the combination of atank having a valve-controlled opening at its upper portion, a tube attached to said valve-controlled opening, an air-pump attached to the side of the tank for forcing air into it, a box having adoor in one side thereof and an opening above the door,

`a detlector on the interior of said box and extending inwardly and rearwardly from said iopeningfor diverting `the heat outwardly when the lamp is placed beneath the deflecing it in said box, substantially as and for the purposes stated.

3. In a device of the class described, the combination of an air-tank having a screwthreaded opening in its top, a thumb-screw to fit in said opening, a valved pipe extending through the top of the tankinto said opening, a metal tube extending into the side of said tank, an air-pump attached to the side of said tank having a valve-controlled outlet in its bottom, a valve-chamber for connecting the bottom of said air-pump and the tube extending through the side of the tank, and a lamp adjustably mounted beneath said tank, substantially as and for the purposes stated.

4. In a device of the class described the combination of a tank having a valve-com leotor on the interior of said box and extending inwardly and rearwardly from said open-` ing for diverting the heat outwardly when i the lamp is set beneath the deiiector, a lamp adjusiably mounted in said box, substantially as and for the purposes stated.

5. In "a device of the class described the combination of a tank having a valve-con-k trolled-opening in its upper portion, means the airinto it, a boxhaving a door in one side thereof and an opening above the door, a lamp in said box, means extending through the sides of the box for adjustingthe lamp in the box from the outside of it, substantiallyas and for the purposes stated.

6. In a device of the class described, the combination of an air-tank, a box `beneath said air-tank, a lamp adjustably mounted in said box, a deilector mounted in said box so arranged that when the lamp is placed be neath the defiector the heat will be thrown outwardly from the bottom of the tank.

IOO

7. In a device of the class described, the

combination of a tank having a conical-shaped bottom, a de tlector attached beneath the tank, a lam p adj ustabl y mounted beneath the tank,

means for adjusting said lamp beneath the SETH W. MACY. SHERMAN R. MACY.

Witnesses:

R. SHEDENHELM, W. R. LANE.

IIO 

